Probes can be saved in any Java project, in any folder that is designated as a source folder.
You can create a probe as a resource in a Java project, or you can create a Java project that only contains probes.
To create or edit a probe:
Parent topic: Creating and using probes
Next topic: Compiling probes
Related concepts
Method probes versus callsite probes
Related reference
The Probekit object
Related information
A basic sample probe